document.write( "Question 29256: A freight train leaves Kansas and travels due west. A passenger train departs at exactly the same time on a parallel track and travels due east at a speed that is twice the speed of the freight train. After 7 hours the trains are 945 miles apart. How fast is each train traveling? \n" ); document.write( "
Algebra.Com's Answer #16082 by Paul(988)\"\" \"About 
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Passegner's train speed = 2x
\n" ); document.write( "Fireight train's speed =x \r
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\n" ); document.write( "\n" ); document.write( "Equation:
\n" ); document.write( "7(x+2x)=945
\n" ); document.write( "21x=945
\n" ); document.write( "x=45\r
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\n" ); document.write( "\n" ); document.write( "2(45)=90\r
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\n" ); document.write( "\n" ); document.write( "Hence, the speed of the freight train is 45mph and the speed of the passenger train is 90mph.
\n" ); document.write( "Paul.
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